Liquid crystal display device

Abstract

A liquid crystal display device includes a first substrate, a pixel electrode which is disposed on the first substrate and comprises a first sub-pixel electrode and a second sub-pixel electrode adjacent to the first sub-pixel electrode along a first direction, and a shielding electrode which is disposed on the same layer as the pixel electrode and comprises a first area having a first width and a second area having a second width which is smaller than the first width along a second direction which crosses the first direction, and the first sub-pixel electrode may be adjacent to the first area along the second direction, and the second sub-pixel electrode may be adjacent to the second area along the second direction.

What is claimed is: 
     
       1. A liquid crystal display (LCD) device comprising:
 a first substrate; 
 a pixel electrode which is disposed on the first substrate and comprises a first sub-pixel electrode and a second sub-pixel electrode adjacent to the first sub-pixel electrode along a first direction; and 
 a shielding electrode which is disposed on the same layer as the pixel electrode and comprises a first area having a first width and a second area having a second width which is smaller than the first width along a second direction which crosses the first direction, 
 wherein the first sub-pixel electrode is adjacent to the first area of the shielding electrode along the second direction, and the second sub-pixel electrode is adjacent to the second area of the shielding electrode along the second direction. 
 
     
     
       2. The LCD device of  claim 1 , further comprising:
 a second substrate which faces the first substrate; and 
 a black matrix which is disposed on the second substrate, 
 wherein the black matrix does not overlap the first sub-pixel electrode and overlaps at least part of the second sub-pixel electrode in a direction perpendicular to a major surface plane defining the first substrate. 
 
     
     
       3. The LCD device of  claim 2 , further comprising:
 a first spacing area which is disposed between the first sub-pixel electrode and the first area of the shielding electrode; and 
 a second spacing area which is disposed between the second sub-pixel electrode and the second area of the shielding electrode, 
 wherein the black matrix completely overlaps the second spacing area in the direction perpendicular to the major surface plane defining the first substrate. 
 
     
     
       4. The LCD device of  claim 3 , wherein the black matrix does not overlap the first spacing area in the direction perpendicular to the major surface plane defining the first substrate. 
     
     
       5. The LCD device of  claim 3 , further comprising a plurality of liquid crystal molecules which are disposed in the second spacing area, wherein the liquid crystal molecules completely overlap the black matrix in the direction perpendicular to the major surface plane defining the first substrate. 
     
     
       6. The LCD device of  claim 1 , wherein the area of the first sub-pixel electrode is smaller than that of the second sub-pixel electrode. 
     
     
       7. The LCD device of  claim 1 , wherein each of the first sub-pixel electrode and the second sub-pixel electrode has a vertical length parallel to the second direction, wherein the vertical length of the first sub-pixel electrode is smaller than that of the second sub-pixel electrode. 
     
     
       8. The LCD device of  claim 1 , wherein each of the first sub-pixel electrode and the second sub-pixel electrode has a horizontal length parallel to the first direction, wherein the horizontal length of the first sub-pixel electrode is smaller than that of the second sub-pixel electrode. 
     
     
       9. The LCD device of  claim 1 , further comprising a common electrode which defines a first slit portion overlapping the first sub-pixel electrode in the direction perpendicular to the major surface plane defining first substrate and a second slit portion overlapping the second sub-pixel electrode in the direction perpendicular to the major surface plane defining the first substrate, wherein each of the first slit portion and the second slit portion is cross-shaped. 
     
     
       10. The LCD device of  claim 9 , wherein each of the first slit portion and the second slit portion has a vertical portion parallel to the second direction, wherein a vertical length of the vertical portion of the first slit portion is smaller than a vertical length of the vertical portion of the second slit portion in the second direction. 
     
     
       11. The LCD device of  claim 9 , wherein the first slit portion comprises a horizontal portion parallel to the first direction and a vertical portion parallel to the second direction, and the second slit portion comprises a horizontal portion parallel to the first direction and a vertical portion parallel to the second direction, wherein a width of the horizontal portion of the first slit portion in the second direction is narrower than a width of the vertical portion of the first slit portion in the first direction, and a width of the horizontal portion of the second slit portion in the second direction is narrower than a width of the vertical portion of the second slit portion in the first direction. 
     
     
       12. The LCD device of  claim 1 , further comprising:
 a first scan line which extends in the first direction and overlaps the shielding electrode in the direction perpendicular to the major surface plane defining the first substrate; and 
 at least part of the second sub-pixel electrode overlaps the first scan line in the direction perpendicular to the major surface plane defining the first substrate. 
 
     
     
       13. A liquid crystal display (LCD) device comprising:
 a first substrate; 
 a pixel electrode which is disposed on the first substrate and comprises a first sub-pixel electrode and a second sub-pixel electrode adjacent to the first sub-pixel electrode in a first direction; 
 a second substrate which faces the first substrate; 
 a black matrix which is disposed on the second substrate; and 
 a shielding electrode which is disposed on the same layer as the pixel electrode and comprises a first area having a first width and a second area having a second width which is smaller than the first width along a second direction which crosses the first direction, wherein the first sub-pixel electrode faces the first area of the shielding electrode along the second direction, and the second sub-pixel electrode faces the second area of the shielding electrode along the second direction, 
 wherein the black matrix does not overlap the first sub-pixel electrode and overlaps at least part of the second sub-pixel electrode in a direction perpendicular to a major surface plane defining the first substrate. 
 
     
     
       14. The LCD device of  claim 13 , further comprising:
 a first spacing area which is disposed between the first sub-pixel electrode and the first area; and 
 a second spacing area which is disposed between the second sub-pixel electrode and the second area, 
 wherein the black matrix completely overlaps the second spacing area in the direction perpendicular to the major surface plane defining the first substrate. 
 
     
     
       15. The LCD device of  claim 14 , wherein the black matrix does not overlap the first spacing area in the direction perpendicular to the major surface plane defining the first substrate. 
     
     
       16. The LCD device of  claim 14 , further comprising a plurality of liquid crystal molecules which are located in the second spacing area, wherein the liquid crystal molecules completely overlap the black matrix in the direction perpendicular to the major surface plane defining the first substrate. 
     
     
       17. The LCD device of  claim 13 , wherein the area of the first sub-pixel electrode is smaller than that of the second sub-pixel electrode. 
     
     
       18. The LCD device of  claim 13 , wherein each of the first sub-pixel electrode and the second sub-pixel electrode has a vertical length parallel to a second direction which crosses the first direction, wherein the vertical length of the first sub-pixel electrode is smaller than that of the second sub-pixel electrode. 
     
     
       19. The LCD device of  claim 13 , further comprising a common electrode which defines a first slit portion overlapping the first sub-pixel electrode in the direction perpendicular to the major surface plane defining the first substrate and a second slit portion overlapping the second sub-pixel electrode in the direction perpendicular to the major surface plane defining the first substrate, wherein each of the first slit portion and the second slit portion has a vertical portion parallel to a second direction crossing the first direction, wherein the vertical length of the vertical portion of the first slit portion is smaller than a vertical length of the vertical portion of the second slit portion in the second direction.